Introduction
Thank you for choosing the INIU P51L 20000mAh 45W Portable Charger. This device is designed to provide reliable and fast charging for your electronic devices on the go. Please read this manual carefully before use to ensure proper operation and to maximize the lifespan of your product.
Product Features
- High Capacity: 20000mAh battery provides multiple charges for smartphones and tablets.
- 45W PD Fast Charging: Supports Power Delivery (PD) and Quick Charge (QC) protocols for rapid charging of compatible devices, including the latest iPhone and Samsung Galaxy models.
- Built-in USB-C Cable: Features an integrated, durable USB-C cable for convenient charging without needing to carry extra cables.
- Digital Display: An LED screen accurately shows the remaining battery percentage in real-time.
- Simultaneous Charging: Equipped with multiple ports (USB-A, USB-C, and built-in USB-C cable) to charge up to three devices concurrently.
- Compact and Lightweight: Utilizes high-density TinyCell battery technology for a smaller and lighter design, making it easy to carry.
- Advanced Safety Protection: Incorporates an 18-layer smart protect system to safeguard against overcharge, over-discharge, over-current, short-circuit, and extreme temperatures.
Package Contents
- INIU P51L 20000mAh 45W Portable Charger
- User Manual
Product Overview
Ports and Indicators:
- Digital LED Display: Shows battery percentage (0-100%).
- Built-in USB-C Cable: For charging USB-C devices and recharging the power bank.
- USB-C Port (Input/Output): Supports 45W Power Delivery for fast charging compatible devices or recharging the power bank.
- USB-A Port (Output): For charging various USB-A compatible devices.
- Power Button: Press once to check battery level or initiate charging. Double-press to activate/deactivate the small flashlight.
- Flashlight: A small LED light for emergency use.
Setup
Initial Charging of the Power Bank:
- For optimal performance, fully charge your INIU P51L Portable Charger before first use.
- Connect the built-in USB-C cable or a separate USB-C cable to the USB-C port of the power bank.
- Connect the other end of the cable to a compatible wall charger (not included). A 45W PD charger is recommended for fastest recharging.
- The digital display will show the charging progress. The power bank is fully charged when the display shows 100%.
Operating Instructions
Charging Your Devices:
- Using the Built-in USB-C Cable: Pull out the integrated USB-C cable and connect it directly to your USB-C compatible device. The power bank will automatically begin charging.
- Using the USB-C Port: Connect a USB-C to USB-C cable (not included) from the power bank's USB-C port to your device.
- Using the USB-A Port: Connect a USB-A to your device's charging cable (not included) from the power bank's USB-A port to your device.
- The digital display will illuminate, showing the remaining battery percentage.
- To stop charging, simply disconnect your device.
Recharging the Power Bank:
- Connect the built-in USB-C cable or a separate USB-C cable to the power bank's USB-C input/output port.
- Plug the other end into a USB wall charger.
- The digital display will show the charging status.
Pass-Through Charging:
The INIU P51L supports pass-through charging, allowing you to charge your devices while the power bank itself is being recharged. Simply connect the power bank to a wall charger and then connect your devices to the power bank.
Using the Flashlight:
- Double-press the power button to turn the small LED flashlight ON.
- Double-press the power button again to turn the flashlight OFF.
Safety Precautions
- Do not expose the power bank to extreme temperatures (above 60°C/140°F or below 0°C/32°F), direct sunlight, or water.
- Avoid dropping, disassembling, or attempting to repair the device yourself.
- Keep out of reach of children.
- Use only certified charging cables and adapters.
- This product is PSE technical standard compliant, ensuring safety for use.
- Airline Travel: The 20000mAh capacity is generally allowed for carry-on luggage on airplanes. Always check current airline regulations before travel (rules as of June 2025).
Troubleshooting
- Device not charging: Ensure the power bank has sufficient charge. Press the power button to activate output. Check if the cable is securely connected to both the power bank and your device. Try a different cable or port.
- Slow charging: Ensure your device supports fast charging protocols (PD/QC) and that you are using a compatible cable. Some devices may require specific charging sequences (e.g., plugging in the phone while the charger is off for superfast charging).
- Power bank not recharging: Ensure the wall charger is functioning correctly and the cable is properly connected. Try a different wall adapter or cable.
- If issues persist, please contact INIU customer support for assistance.
Specifications
| Model | P51L |
| Battery Capacity | 20000 mAh |
| Output Power | Max 45W |
| Input Voltage | 5 Volts |
| Connector Types | USB Type A, USB Type C |
| Number of Ports | 3 (1x USB-A, 1x USB-C, 1x Built-in USB-C cable) |
| Battery Cell Type | Lithium Polymer |
| Product Weight | 326.1 grams |
| Dimensions (L x W x T) | 11.5 cm x 7.3 cm x 2.9 cm |
| Color | Black |
| Features | Digital Display, Integrated USB-C Cable, Fast Charging |
| Compatible Devices | iPhone (17/16/15/14/13/12/11/SE/X/8 series), Samsung Galaxy (S25/S24/S23/S22/S21/S20/S10/S9/S8/S7/S6 series), Google Pixel (10/9/8/7/6/5/4/3/2 series), iPad Pro, iPad Air, Apple Watch Series (9/8), AirPods Max, AirPods Pro, AirPods. |
Warranty and Support
INIU provides a 3-year quality warranty for this product. If you encounter any quality issues within this period, please contact our customer support for a replacement.
For further assistance or inquiries, please visit the official INIU website or contact our customer service team through the contact information provided in your product packaging.
